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Finding the Fourth Proportional to 74,193.78, 111,289.67 and 18,033.72

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Solution

The fourth proportional to 74,193.78, 111,289.67 and 18,033.72 is: 27,050.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,193.78 : 111,289.67 = 18,033.72 : x
  2. Step 2: Convert to fraction form
    74,193.78/111,289.67 = 18,033.72/x
  3. Step 3: Cross multiply
    74,193.78x = 111,289.67 × 18,033.72
  4. Step 4: Simplify right side
    74,193.78x = 2,006,966,657.50
  5. Step 5: Solve for x
    x = 2,006,966,657.50/74,193.78
  6. Step 6: Final answer
    x = 27,050.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.